"Most" confusion

Comments

• kennedybj Alum Member

  December 2015 697 karma

  7sage.com/lesson/7-common-invalid-argument-forms/
• GSU Hopeful Core ⭐

  December 2015 1644 karma

  Nope. Two mosts don't form an inference.
• eddySH84 Member

  December 2015 39 karma

  @kennedybj thanks for pointing me to it....
• Nicole Hopkins Alum Inactive Sage Inactive ⭐

  December 2015 edited December 2015 4344 karma

  Edit: Thanks, @nye8870 Check this out! http://7sage.com/lesson/invalid-argument-form-6-of-7/
• as5324therapy Member

  December 2015 175 karma

  2 most=some (some A are C)
• runiggyrun Alum Inactive Sage Inactive ⭐

  December 2015 edited December 2015 2481 karma

  I'm not sure I understand the original premise correctly, but if it's "most A's are B's" and "most B's are C's", then we can't say absolutely anything about the relationship between A and C.
  You can have, say, 5 of the A's. 3 of those (most) are B's. But what if there are a total of 100 B's, of which 51 (most) are C's, there's no requirement for those 51 to include the 3 A's.
  Example: most young women in China (A) are bike riders (B). Most bike riders (B) in China are men (C). These can both be correct, as we know there are more men than young women in China. Yet the conclusion "some young women in China are men" (some A are C) is clearly not correct.
  
  Apologies if I misread the original premise.
  
• nye8870 Alum ⭐

  December 2015 1749 karma

  http://7sage.com/lesson/invalid-argument-form-6-of-7/
• nye8870 Alum ⭐

  December 2015 1749 karma

  JY says..." A--most-> B-most->C ....... No valid conclusions!"
• nye8870 Alum ⭐

  December 2015 1749 karma

  @as5324therapy said:
  2 most=some (some A are C)
  

  not correct...please check video above
• abhere Free Trial Member

  December 2015 5 karma

  @"GSU Hopeful" said:
  Nope. Two mosts don't form an inference.
  

  Well, actually if there was A most B and A most C, then B some C could be concluded.
• runiggyrun Alum Inactive Sage Inactive ⭐

  December 2015 2481 karma

  Yes, if most A are B AND most A are C, then some B are C would be correct. That's different from the original question, at least the way I understood it.
• nye8870 Alum ⭐

  December 2015 1749 karma

  @runiggyrun said:
  Yes, if most A are B AND most A are C, then some B are C would be correct.
  

  True....different intersection than OP
• as5324therapy Member

  January 2016 175 karma

  @nye8870 said:
  not correct...please check video above
  

  oh yes thanks just saw
• GSU Hopeful Core ⭐

  January 2016 1644 karma

  @abhere youre right. When I wrote that, I was referring to OP example. I should've been more clear. My fault.